In the 2018 PDC World Darts Championship, he defeated Kai Fan Leung, and number 30 seed Mark Webster to set up a second round clash with Gary Anderson. He lost the match 4-1 and also missed double 12 for a nine dart finish. In the 2018 PDC World Cup of Darts, he again paired up with Harith, where they defeated New Zealand 5-3 to set up a second round clash with England. In the first round, Paul defeated world champion Rob Cross 4-2 with an average of 102.29. However, Harith lost his singles match to Dave Chisnall, meaning a doubles match was required which they lost 4-1.